Claim the Firstborn [Throne of Eldraine] Normal Trap You can only activate 1

You can only activate 1 "Forbidden Trapezohedron" per turn

Then exile it

while they control a face-up monster (Quick Effect): You can detach 2 materials from this card

Set: Kaladesh Inventions Type: Artifact Creature — Construct Rarity: Mythic Cost: {X}{X} Hangarback Walker enters the battlefield with X +1/+1 counters on it

and spiderwebs

Claim the Firstborn [Throne of Eldraine] Normal Trap You can only activate 1Set: Throne of Eldraine Type: Sorcery Rarity: Uncommon Cost: {R} Gain control of target creature with mana value 3 or less until end of turn. Untap that creature. It gains haste until end of turn. "The deal was struck and the favor had been done. And so, under the cover of night, the debt was paid." *Tales of the Fae*